Have One Formula Reference Another Formula in Saved Search?

I have built several searches where I have formulas that kind of "stair step" into the final value I'm looking for.  For instance, if I have formula columns A,B,C&D, columns A & B might each be a CASE WHEN statement.  Column C might be another CASE WHEN statement that combines the formulas in columns A & B.  Column D (my final value) might combine some new values with Column C (which really includes Columns A & .

My point is that by the time you get to the final column, you could have 4 or 5 CASE WHEN statements, each with a couple WHERE clauses and it ends up being kind of a huge mess to sift through if you want to change something and/or make a mistake that you have to troubleshoot.  Is there a way to reference formula columns in Saved Searches that I'm not aware of?  Ideally in Column D in my example, I'd be able to build a formula something like "CASE WHEN {result_of_formula_in_column_b}>{result_of_formula_in_column_a} then {result_of_formula_in_column_c} else 0 end."